I'm not sure it this is true but you don't need 64 bit vista for DX10
32 Bit vista will run all(?) DX10 games.
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My Rig:
Intel C2D E8400
Gigabyte EX38 - DS4
Gigabyte 8800GTS (512 - G92)
4GB Corsair PC2-6400 (Heatsinked)
Total 380GB HDD (320 + 40)
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